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Reliability Analysis of Ultimate Longitudinal Strength for Ships in Yangtze River

[+] Author Affiliations
Le Deng, Ji Guo, Chuang Fang

China Classification Society, Wuhan, China

Lu-yao Zou

Shanghai Jiaotong University, Shanghai, China

Paper No. OMAE2016-55092, pp. V003T02A054; 5 pages
  • ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 3: Structures, Safety and Reliability
  • Busan, South Korea, June 19–24, 2016
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4994-1
  • Copyright © 2016 by ASME


With Consideration of the uncertainties of materials yield strength, still water bending moment and wave-induced bending moment, the failure equation is established based on reliability analysis method. The reliabilities of 33 ships navigating in Yangtze River are calculated using improved FOSM method, according to which the target reliability is obtained, and the partial safety factors for hull girder ultimate strength, still water bending moment and wave-induced bending moment are given. As a result the formula for probability assessment of ultimate strength is established. Verification of sample ships shows that the formula is accurate and useful.

Copyright © 2016 by ASME



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